Plug-socket.



J. W. PHELPS.

PLUG SOCKET.

APPLICATION FILED APR. 9, 1009.

Patented June 11, 1912.

wwaxhfel UNITED STATES PATENT orrrou.

JAMES WILEY PHELPS, OF DETROIT, MICHIGAN.

PLUG-SOGKET.

fTo all whom 'it may concern:

ter having a concealed cont-rolling switch the head as indicated.

for the lamp circuit provided with external actuating means, preferably in the form of a depending cord or string, the appliance being insertible within the usual permanent lamp socket and intended for use as an'attachment in connection with lamps located out of the convenient reach of the user.

The invention further consists in the peculiar arrangement and combination of the parts comprisihg the plug socket, and in certain details of construction as will be hereinafter set forth.

In the drawings,Figure 1 is a vertical central section throughmy improved attachment; Fig. 2 is a cross section taken on line wr1: of F ig. 1; and Fig. 3 is a similar section taken on line 3 3 of the samefigure.

In construct-ion, the plug socket is formed of a tubular body A of insulating material, preferably though not necessarily porcelain divided into two oppositely-disposed socket.

sections B and C by an insulator head 1) preferably formed integral with the body. Within the socket portion B is located the usual threaded shellcontact E having a transverse flange portion I that seats upon the head and is secuied thereto by a screw G. H is the usual center contact for the lamp-receiving socket B, secured to the head by a screw I which extends entirely through J represents the plug contact of the at i tachment of theordinaryexternally threadared shell constructiom-fitt'ed at one end' within the socket C and provided at its outer end with the usual insulated center contact K.'

L represents the controlling switch for the lamp circuit, whichI have shown arranged within the socket G of the attachment. It is pivoted; at one end to the head by the screw I and is adapted to be brought into Specification of Letters Patent.

Patented June 11, 1912.

Application filed April 9, 1909. Serial No. 488,999.

and out of engagement with a contact M upon the head which is connected by a suitable conductor 0 to the center cont-act K.

The operating means for the switch is preferably a cord, as P, the switch being of the type usually designated as a pullstring switch, the cord or string extending through a pair of apertured ears b upon the switch proper, knotted intermediate the ears to form an operative engagement, and the ends extending the required distance below the attachment in a position conveniently accessible to the user.

As thus constructed, it will be seen that the center contacts H and K are electrically connected through the switch, the switch pivot, contact, and usual conductor 0, and the shell portions within the body sockets are connected through the securing screw G and a conductor Q, extending from the lower end of the securing screw to the shell a.

A noveland simple means of attachment is employed for uniting the shell of the plug contact J to the insulator body, and also for forming'elect-rical contact between the conductor Q and the plug shell. Within the wall of the socket C is formed a transverse opening or aperture 0, which leads through the wall to the plug shell, as shown in Fig. 1.

Prior to the positioning of the plug within upon the exterior of the shell which engages the aperture and holds the shell in its proper position. Preferably, three of these openings are formed in the shell at equidistant points, each filled or partially filled with solder, for the purpose set forth.

In cases where an electric lamp is located in a position not easily accessible to the user,

the attachment may be employed, the 'L'mp i being removed from the terminal socket, the plug portion of the attachment inserted therein, and the lamp arranged within the attachment socket. The switch of the terniinal socket is then closed, and the operation of the lamp controlled solely through the operating switch within the attachment.

What I claim as my invention is,-

1. In a plug socket, the combination with a tubular insulator body, of an insulator head arranged transversely therein inter \ediate the body ends, a switch member pivoted upon one side of the head and a contact therefor, and a center contact'upon the opposite side of said head and secured to the latter by the switch pivot.

2. The combination of an insulator body having a recess or socket formed therein of a size to receive the shell of, a plug con tact, and a lateral opening extending through the socket wall, a plug contact positioned within the recess, and a retainer for uniting the parts fixed upon the exterior of the plug shell and engaging the opening in the wall of the recess.

3'. The combination of an insulator body having a recess or socket formed therein, and an opening leading through the recess wall, of a shell contact located within the recess, and a solder member upon the shell engaging the opening.

4. The combination of an insulator body having 'a recess or socket formed the ein, and an opening leading through the recess Wall, of a shell contact located within the recess, a-retainer for the shell engaging the opening, and a conductor within the body socket extending in operative relation to the opening and embedded within the retainer. V

5. The combination of an insulator body having a socket formed therein, and a transverse opening leading through the socket wall, of a shell contact located within the socket, a conductor located within said socket extending within the opening, and material within said opening forming a connection between the body and shell and uniting the latter with the conductor.

6. In a plug socket, the combination with a tubular insulator body, of an insulator bead arranged transversely therein intermediate the body ends, a switch member pivoted to said head, a contact. for said switch member, and a center contact secured to the head by the pivot of the switch member.

8. The combination with an insulator body having a recess or socket formed therein, an

opening leading through the recessed wall,

a shell contact located within the recess, and a retainer upon the shell for engaging said opening.

9. The combination of an insulator body having an insulator head dividing't-he interior of the body into complementary socket sections, a shell contact positioned within one of the socket sections, a switch arranged within the other socket section having its movable member pivoted to said insulator head, and a plug contact having a portion arranged within the last mentioned socket.

10. The combination of an insulator body having an insulator head dividing the interior of the body into complementary socket sections, a shell contact positioned in one of said socket sections, a plug contact having a portion thereof arranged within the other socket section, and a switch including a comparatively fiat movable member arranged within one of said sections and pivotally mounted upon the head.

11. The combination of an insulator body having an insulator head dividing the inte nor of the body into complementary socket ating said switch member having a portion thereof extending without the body.

In testimony whereof I atlix my signature in presence of two witnesses.

. JAMES NVILEY PHELPS. Witnesses NELLTE Kinsman, W. J. BELKNAP. 

